HP Visualize J5000 - Workstation Handbook page 34

Product Information
Internal Components
Power Supply
Although the power supplies in the J5000 and J7000 look the same, their power outputs
and the number of bus bars connecting them to the system board are different. Each power
supply weighs approximately 17 pounds and has two internal cooling fans.
The power supply in the J5000 supplies 830 Watts of power to the workstation and is
connected to the system board by three gold plated bus bars over the center wall of the
chassis. In contrast, the power supply in the J7000 supplies 1,350 Watts of power and is
connected to the system board by four gold plated bus bars.
I/O Board
The I/O board is mounted on the center wall of the workstation chassis, partially behind
the power supply. Over the center wall of the chassis, the I/O board is attached to the
workstation's system board by a flex cable. The I/O board, which is the same in both the
J5000 and J7000, has connections to the Serial, LAN, USB, Parallel, SCSI, and audio
built-in I/O. See the subsection "Connectors on the Rear Panel" on page 22 for a
description of the built-in I/O.
The I/O board also has 64-bit slots for PCI (Peripheral Connect Interface) cards, providing
I/O expansion capabilities for the workstations. There are five PCI-2X slots at 5V and
33 MHz each, and two PCI-4X slots at 3.3V and 66 MHz each. Slot 1 is reserved for power
only; an I/O card should not be installed in slot 1. See the subsection "I/O Slots" on page 26
for a listing of the I/O slot assignments.
SCA Hard Disk Interface
The SCA (Single Connector Attach) hard disk interface (also known as the backplane
board) is mounted on the back of the hard disk drive bays in the J5000 and J7000. The
SCA hard disk interface is connected to the I/O board by an Ultra2 Wide LVD (Low Voltage
Differential) SCSI ribbon cable.
I/O Cooling Fan
The I/O cooling fan is located in the fan/speaker mounting bracket in the bottom of the
front, right side of the workstation. This fan draws air flow from the front of the
workstation inward to cool PCI cards that are attached to the I/O slots on the I/O board.
Speaker
The speaker is mounted within a bracket assembly with the I/O cooling fan. The speaker
has 16-bit, 44 kHz CD-quality sound.
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